Visting Nothern Spain means mandatory stop through Santiago de Compostella. That si, of course, if you haven't started already your trip here, as this airport is serviced by more low-cost airliners than any other in this part of Spain. It is a religious center, and this sometimes provides for unique architecture , such as the imposing gothic cathedral. And naturally, this is where the "way of St James" ends.
Of course, if you don't feel like walking a few hundred miles, then it's probably best to hire one of our cars. Perhaps you want to see the long lines of pilgrims heading for the town, in which case you should probably book a oneway to one of the other major Spanish towns.